if exist "bank23.bin" goto bank24
copy bank22.bin bank23.bin
:bank24
if exist "bank24.bin" goto bank25
copy bank23.bin bank24.bin
:bank25
if exist "bank25.bin" goto bank26
copy bank24.bin bank25.bin
:bank26
if exist "bank26.bin" goto bank27
copy bank25.bin bank26.bin
:bank27
:end
